Illuminating Unit

Abstract

An illuminating unit includes a first bus bar, a second bus bar and a third bus bar of the same shape, each of which has a pair of right and left contact spring pieces that are spaced in a given direction and parallel to each other. The first bus bar, the second bus bar and the third bus bar are inserted into a housing and aligned in parallel in the given direction. Semiconductor light emitting elements, which emit lights in different color temperatures, are inserted into the housing, and connected to respective adjacent pairs of the right and left contact spring pieces of the first bus bar and the second bus bar, and the second bus bar and the third bus bar. A cover accommodates the housing, and includes a lens through which outgoing lights from the semiconductor light emitting elements pass.

1 . An illuminating unit, comprising:
 a housing;   a first bus bar, a second bus bar and a third bus bar of the same shape, each of which has a pair of right and left contact spring pieces that are spaced in a given direction and parallel to each other, wherein the first bus bar, the second bus bar and the third bus bar are inserted into the housing and aligned in parallel in the given direction;   a first semiconductor light emitting element which is inserted into the housing, and connected to an adjacent pair of the right and left contact spring pieces of the first bus bar and the second bus bar;   a second semiconductor light emitting element which is inserted into the housing, and connected to an adjacent pair of the right and left contact spring pieces of the second bus bar and the third bus bar, wherein the second semiconductor light emitting elements emits light in a color temperature different from that of the first semiconductor light emitting element; and   a cover which accommodates the housing, and includes a lens through which outgoing lights from the first semiconductor light emitting element and the second semiconductor light emitting element pass.   
     
     
         2 . The illuminating unit according to  claim 1 , wherein
 each of the first bus bar, the second bus bar and the third bus bar has a pair of element abutting seats that are opposite to the respective right and left contact spring pieces, and   the first semiconductor light emitting element and the second semiconductor light emitting element have light emitting part defining surfaces, where light emitting parts are provided, which abut against the element abutting seats, to arrange the light emitting parts on a same plane.   
     
     
         3 . The illuminating unit according to  claim 1 , further comprising
 a control circuit that controls a light intensity of at least one of the first semiconductor light emitting element and the second semiconductor light emitting element to vary a color temperature of outgoing lights emitted through the lens.